function filter(){
	if(parent!=null){
		var filter=document.getElementById("filter");
		var s="";
		for (var i=0;i<filter.projectSelect.options.length;i++) {
			if(filter.projectSelect.options[i].selected){
				s+="projectSelect="+filter.projectSelect.options[i].value+"&";
			}
		}
		parent.document.getElementById("iframe_frame_Board").src=
			"Task.jsp?"+s+
			"fromDate="+filter.fromDate.value+
			"&toDate="+filter.toDate.value+
			"&boolSelect="+filter.boolSelect.value+
			"&developerSelect="+filter.developerSelect.value;
	}
}